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– 6 –

OCP

Low B and +B line detect DET SHORT, and shut-down POWER ON RELAY.

Reset by turning power on/off.

In case of +B is loaded approx. 2A or more, microcomputer detects it via IC651.

OVP

In case of +B becomes approx. 150V or more, POWER ON RELAY shuts down and microcomputer detects it via IC651.

Reset by turning power on/off just the same as OCP.

V Stop

In case of microcomputer detects 2 seconds or more interval of V Pulse, Reference Pulse turns off by turning off the picture

signal in YC Jungle IC (IC206).

After the picture signal turns off, H Pulse is regenerated 2 seconds or more, the picture signal turns on.

AKB

IK detection.  Makes LED blinking in case of microcomputer doesn’t detect IK returns of IC206 CXA2147Q 30 seconds or more.

H Stop

In case of HV becomes 33kV or more, IC502 detects it and shut-down H Drive Pulse.

Microcomputer receives H Stop data from IC206 and makes LED blinking.

Audio

In case of DC component overlaps the output of Audio Amp., microcomputer detects it and makes LED blinking.

Microcomputer forces to shut down the power.

55

8

20

21

22

49
47
50

3

27

34

35

43

5. AKB

5. AKB

3. OVP

2. OCP

4. V.STOP (V Pulse)

Audio

IC002

µ

Processor

IC206

CXA2147

YCJ

Q006

D1201

TIMER/STANDBY

IC004

EEPROM

IC502

HV Detector

Q1505

V Pulse Buffer

IC651

OVP Buffer
OCP Buffer

C Board

DC Detect

IC1509
V Drive

IC406

Audio AMP

6. H STOP

6. HV STOP

BUS

4

48

OVP DETECT

OCP DETECT

– 7 –

Section

Title

Page

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Section

Title

Page

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SELF DIAGNOSIS FUNCTION ............................................ 4

Using This Manual .................................................................. 9
Precautions .............................................................................. 9
Installing and Connecting the Projection TV .......................... 9
Basic Set Up .......................................................................... 17
Using Your New Projection TV ............................................ 18
Adjusting Your SET UP (menus) .......................................... 22
Operating Video Equipment .................................................. 33
Operating a Cable Box or Satellite Receiver (SAT) .............. 34
Troubleshooting .................................................................... 35

2-1.

Rear Board Removal ................................................. 36

2-2.

Chassis Assy Removal .............................................. 36

2-3.

Service Position ......................................................... 36

2-4.

HA Board and HB Board Removal ........................... 36

2-5.

Mirror Cover Removal .............................................. 37

2-6.

Beznet Assy Removal ................................................ 37

2-7.

HC Board and S Board Removal .............................. 37

2-8.

U Board and Terminal Board Removal ..................... 37

2-9.

A Board and G Board Removal ................................ 38

2-10.

Picture Tube Removal ............................................... 38

2-11.

High-Voltage Cable Installation and Removal .......... 38

3-1.

Screen Voltage Adjustment (Coarse Adjustment) ..... 39

3-2.

Screen (G2) Adjustment (Fine Adjustment) .............. 39

3-3.

Deflection York  Tilt  Adjustment ............................... 39

3-4.

Focus Lens Adjustment ............................................. 39

3-5.

Focus VR Adjustment ............................................... 40

3-6.

2-Pole Magnet Adjustment (Green, Red) .................. 40

3-7.

4-Pole Magnet Adjustment ........................................ 40

3-8.

Defocus Adjustment (Blue) ....................................... 40

3-9.

Electrical Adjustment by Remote Commander ......... 41

3-10.

Registration Adjustment (PJE) .................................. 46

3-11.

Auto Registration Error Code List ............................ 49

4-1.

HV Regulation Circuit Check and Adjustment ......... 50

4-2.

HV Hold Down Circuit Operation and Adjustment .. 50

4-3.

+B Max Voltage Confirmation .................................. 50

4-4.

+B OVP Confirmation ............................................... 51

5-1.

TV Input Sub Contrast Adjustment
(VPNT-SCON) .......................................................... 52

5-2.

Video Input Sub-HUE and Sub-Color Adjustment
(VPNT-SHUE, SCOL) .............................................. 52

5-3.

Component Input Sub-HUE and Sub-Color
Adjustment (DAC-UVSH, UVSC) ........................... 52

5-4.

P & P Sub Contrast Adjustment (SC-SYDR) ........... 52

5-5.

Sub-HUE, Sub-Color and Main Contrast Adjustment
(MC-MYDR, MSHU, MSCL, SC-SSHU, SSCL) .... 53

5-6.

Bar Display Position Adjustment (OP-DISP) ........... 53

5-7.

PIP Acquisition Area Adjustment
(PP-MAHP, SAHP) ................................................... 53

5-8.

Display Position for Channel Index Mode
(CCDCCHP) ............................................................. 53

6-1.

Block Diagram (1) ..................................................... 55
Block Diagram (2) ..................................................... 57
Block Diagram (3) ..................................................... 59
Block Diagram (4) ..................................................... 63
Block Diagram (5) ..................................................... 67
Block Diagram (6) ..................................................... 69

6-2.

Frame Schematic Diagram ........................................ 71

6-3.

Circuit Boards Location ............................................ 74

6-4.

Printed Wiring Boards and Schematic Diagrams ...... 74
• A (1/3)Board ........................................................... 75
• A (2/3)Board ........................................................... 79
• A (3/3)Board ........................................................... 83
• G Board ................................................................... 91
• U Board ................................................................. 101
• CG Board .............................................................. 105
• CR Board .............................................................. 106
• CB Board .............................................................. 107
• HA Board .............................................................. 109
• HC Board .............................................................. 109
• HB Board .............................................................. 110

6-5.

Semiconductors ....................................................... 111

7-1.

Cover (KP-48V85) .................................................. 113

7-2.

Cover (KP-53V85/61V85) ...................................... 114

7-3.

Chassis ..................................................................... 115

7-4.

Picture Tube ............................................................ 116

8. ELECTRICAL PARTS LIST .................................. 117

– 8 –

(CAUTION)

SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR CAR-
BON PAINTED ON THE CRT, AFTER REMOVING THE ANODE.

WARNING!!

AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BE-
CAUSE OF LIVE CHASSIS.
THE CHASSIS OF THIS RECElVER IS DIRECTLY CONNECTED
TO THE AC POWER LINE.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY SHADING AND MARK ! ON THE
SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESECOMPONENTS WITH SONY PARTS WHOSE PART NUM-
BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT
ARE CRITICAL TO SAFEOPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITI-
CAL COMPONENTS ARE REPLACED OR IMPROPER OPERA-
TION IS SUSPECTED.

(ATTENTION)

APRES AVOIR DECONNECTE LE CAP DE L’ANODE, COURTCIR-
CUITER L’ANODE DU TUBE CATHODIQUE ET CELUI DE
L’ANODE DU CAP AU CHASSIS METALLIQUE DE L’APPAREIL,
OU AU COUCHE DE CARBONE PEINTE SUR LE TUBE CATHOD-
IQUE OU AU BLINDAGE DU TUBE CATHODIQUE.

ATTENTION!!

AFIN D’EVITER TOUT RISQUE DELECTROCUTION PROVE-
NANT D’UN CHÁSSIS SOUS TENSION, UN TRANSFORMATEUR
D’ISOLEMENT DOIT ETRE UTILISÉ LORS DE TOUT DEPAN-
NAGE.
LE CHÁSSIS DE CE RECEPTEUR EST DIRECTEMENT RAC-
CORDÉ Á L’ALIMENTATION SECTEUR.

ATTENTION AUX COMPOSANTS RELATIFS ÁLA

SÉCURITÉ!!

LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET PAR UNE

MAPQUE ! SUR LES SCHÉMAS DE PRINCIPE, LES VUES EX-
PLOSÉES ET LES LISTES DE PIECES CONT D’UNEIMPORTANCE
CRITIQUE POUR LA SÉCURITÉ DU FONCTIONNEMENT. NE LES
REMPLACER QUE PAR DES COMPOSANTS SONY DONT LE
NUMÉRO DE PIÉCE EST INDIQUÉ DANS LE PRÉSENT MAN-
UEL OU DANS DES SUPPLÉMENTS PUBLIÉS PAR SONY. LES
RÉGLAGES DE CIRCUIT DONT L’IMPORTANCE EST CRITIQUE
POUR LA SÉCURITÉ DU FONCTIONNEMENT SONT IDENTIFIES
DANS LE PRÉSENT MANUEL. SUIVRE CES PROCÉDURES
LORS DE CHAQUE REMPLACEMENT DE COMPOSANTS CRI-
TIQUES, OU LORSQU’UN MAUVAIS FONCTIONNEMENT EST
SUSPECTÉ.

– 9 –

The operating instructions mentioned here are par tial abstracts from the
Operating Instructions Manual. The page numbers of the Operating
Instruction Manual remain as in the manual. (Part no : 4-077-172-11)

• Operate the projection TV only on 120 V

AC.

• The plug is designed, for safety purposes,

to fit into the wall outlet only one way. If
you are unable to insert the plug fully into
the outlet, contact your dealer.

• If any liquid or solid object should fall

inside the cabinet, unplug the projection
TV immediately and have it checked by
qualified service personnel before
operating it further.

• If you will not be using the projection TV

for several days, disconnect the power by
pulling the plug itself. Never pull on the
cord.

Clean the cabinet of the projection TV with a
dry soft cloth.  To remove dust from the
screen, wipe it gently with a soft cloth.
Stubborn stains may be removed with a cloth
slightly dampened with solution of mild soap
and warm water.  Never use strong solvents
such as thinner or benzine for cleaning.

If the picture becomes dark after using the
projection TV for a long period of time, it may
be necessary to clean the inside of the
projection TV. Consult qualified service
personnel.

We recommend that you carefully review

the contents of the following four sections in

the order provided to ensure that you fully

understand the operation of your new

projection TV.

This section guides you through your
initial set up. It shows you how to install
your projection TV, to connect your new
components and to connect to the
antenna and cable.

This section teaches you the basic skills
needed to operate your new projection
TV, including Auto Set Up. It shows you
how to operate the remote control’s
special functions.

This section shows you how to begin
using your new projection TV. It shows
you how to use your remote control’s
features.

This section teaches you how to access
on-screen menus and adjust your
projection TV’s settings.

• To prevent internal heat buildup, do not

block the ventilation openings.

• Do not install the projection TV in a hot or

humid place, or in a place subject to
excessive dust or mechanical vibration.

• Avoid operating the projection TV at

temperatures below 5° C (41° F).

• If the projection TV is transported directly

from a cold to a warm location, or if the
room temperature changes suddenly, the
picture may be blurred or show poor
color. In this case, please wait a few hours
to let the moisture evaporate before
turning on the projection TV.

• To obtain the best picture, do not expose

the screen to direct illumination or direct
sunlight. It is recommended to use spot
lighting directed down from the ceiling or
to cover the windows that face the screen
with opaque drapery. It is desirable to
install the projection TV in a room where
the floor and walls are not of a reflective
material.

Carrying the projection TV requires three or
more people.

The projection TV has been equipped with
casters for easy movement on a hard surface.
Please move your projection TV using the
casters.

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